Tempering apparatus.



LG. MATTHEWS.

TEMPERING APPARATUS.

APPLICATION FILED APE.11.1903

Patented Jan. 5, 1909.

. portion faster than another.

ATENT o EioE.

7 Jenna. MATTHEWS, or THREE nrvnns, MICHIGAN.

'TEMPERING No. 908,590. Specification of Application filed April 11,

To all whom it may concern:

Be it known that I, J OHN G. MATTHEWS, a citizen of the United States, residing at the city of Three Rivers, county of St. Joseph, State of Michigan, have invented certain new and useful Improvements in Tempering Apparatus, of which the following is a specification. 7

This invention relates to improvements in tempering apparatus, particularly the hardening apparatus.

The main objects of this invention are: First, to provide an improved hardening ap paratus for use in hardening reamers, made in accordance with the process described and claimed in Letters Patent of the United States, No. 848,112, issued to me on the 26th day of March, 1907. Second, to provide an improved hardening or tempering apparatus by means of which the cooling medium may be so distributed upon the tool as to cool one Third, to provide an improved hardening or tempering apparatus by means of which the desired portion of a tool or article may be tempered, as the central part thereof, and the end portions thereof remain untempered or not hardened. Fourth, to provide an improved tempering or hardening apparatus by which all portions of the tool may be thoroughly tempered or hardened. Fifth, to provide an improved hardening or tempering apparatus by which toolshaving grooves, flutes, or the like, may be tempered or hardened so that the portion of a tool at the bottoms of the grooves may be effectively tempered or hardened.

Further objects, and objects relating to structural details, udll definitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and means described in the following specification:

The invention is clearly defined and pointed out in the claims.

A structure embodying the features of my invention is clearly illustrated in the accompany ing drawing, forming part of this specification, in which,

Figure 1 is a detail side elevation of a structure embodying the features of my invention, the parts being shown more or less in conventional form, and no effort being madeto show their proper relative proportions. Fig. 2 is a horizontal section, taken on a line corresponding to line 22 of Fig. 1.

APPARATUS.

Letters Patent; I "Patented Jan. 5, 1909.. 1903. Serial No. 426,567.

Fig. 3 is a detail section,taken. on time cor-,

responding to line 3-3 of.Fig. 2, showi1ig structural details of one of the spraying devices. Fig. 4 is a detail section,taken ona hne corresponding to line lt-40f Fig. .1.

In the drawing, the sectionalv views are taken looking in the direction of the little are I rings, with jet orifices 4 directed'inwardly, $01

that the tool to be treated may be thrust into the rings, and the fluid delivered thereto evenly and effectively from all sides at the same time. I preferably provide three of these spraying rings or devices, particularly when the device is arranged for use in hardening tools and reamers made accordingto the process of my patent hereinbefore referred to.

It is desirable, in the manufacture of tools according to the process of my patent, that the ends of the blades should first be cooled and then the central portion, which I find largely prevents the warping of the blades during this hardening operation.

The spraying devices are preferably arranged so that the tool may be held in a horizontal position, as in the structure illustrated, and the tool slowly revolved so that the spelter is not likely to run out of the joints.

A tool may be effectively supported with a pair of tongs, but, for use in operation on certain classes of tools, it is desirable to provide a support or rest as 17, which I arrange at the forward end or the spray devices so that a tool may be laid therein and supported in proper position to receive the spray. This rest is preferably provided with a pair of inwardly directed nozzles 18, which I ordinarily arrange to deliver against the shank or body of the tool, thereby effect ively cooling that portion of the tool. They may, however, be adjusted to deliver against some other portion of a tool. To accomplish this, I preferably make the joints loose enough to permit of the desired ad-- justment. At the rear of the spray devices,

, 1 preferably provide a gage 20, which is adjustably mounted on an arm 21 projecting from the rear spray device.

For cooling hollow tools, I preferably pro vide a delivery nozzle 22, adapted to deliver into the end of the tool. This nozzle may be conveniently supported by means of the tool gage 20. This nozzle is connected to the source of fluid supply by a flexible pipe, as 23, the connection not being here illustrated as its details will be readily understood. The nozzles 18 are also suitab y connected to the fluid supply, as by a pipe 26, which is controlled by a valve 2 1, but, as these details will be obvious, they are not here illustrated.

The delivery pipe 5 is preferably connected to the bottom of the reservoir 1, and

this delivery pipe is connected to the spraying devices 3 by the connections 6, 7 and S, the connections 6 and 7 for the outer spraying devices being connected to the pipe 5 at the sides thereof, and the connection 8 for the central spraying device being connected to the bottom or lower end of the delivery pipe. The delivery pipe is closed by a valve 9, which is preferably located in the bottom of the reservoir. The connecting pipe 8 is closed by the valve 10, which is ocated below the connecting pipe 7. Both valves are shown of the conical type, and are connected by means of a flexible or adjustable connection 12, shown as a chain. This chain is provided with sufficient slack so that the valve 9 is opened, allowing the fluid to pass through the pipes 6 and 7 before the valve 10 is opened, so that the fluid is delivered to the outer spraying rings or devices before it is delivered to the central spraying device. It is, of course, obvious that other arrangements of valves and connections may be used.

The valve 9 is connected by means of the chain 13 to the valve lever 14, which is mounted at 15 on the reservoir 1. It is intended that the chain 16 shall extend down in osition to be operated by means of a suitab e foot lever. As such an arrangement would be obvious, it is not here illustrated.

The several spraying devices are provided with valves, as 25, so that any desired spray device may be cut out when deemed desirable, as might be required in treating tools or in treating only some portion of a tool. I also preferably sup ort the spraying devices adjustably so tliat they may be adjusted to the particular tool to be treated. This I accomplish in a simple and effective manner by making the joints of the connections loose enough so the rings can be readily adjusted, as indicated in Fig. 2, where dotted lines show the rings separated for tools with long blades, and also show the middle ring swung out of the way and the outer rings brought close together for tools with short blades; thus making the adjustment very complete. The end delivery nozzle 22 is also preferably made adjustable in its support so that it can be adjusted to bring its end into the tool, or so that it will properly deliver thereto. This arrange ment, although very simple, enables the easy controlling of the delivery of the fluid to the spraying devices, and the tool operated is in position so that the workman has a full view thereof, so that the work can be very accurately gaged.

By a device of this kind, I am enabled to effectively and evenly harden tools, such as reamers made according to my patent hereinbefore referred to in which the blades are secured in place by a spelter. By delivering the cooling medium to the tool while it is suported in a horizontal position, the tendency 5 of the spelter to flow out of the joints is overcome. Further, by my improved tempering or hardening apparatus, I am enabled to treatany desired part or parts of a tool, or other device to be treated, and thus readily secure the results sought.

My apparatus is particularly advantageous for grooved or fluted tools, as the fluid is delivered into the bottom of the grooves or flutes, so that the tool is evenly cooled whereas, when the tool is treated by plunging into a vat, or the like, steam or vapor collects in the grooves and prevents the even tempering of the tool, or prevents its cooling quickly enough to secure the desired hardness.

Advantages other than these I have enumerated will readily appear to those skilled in the art to which my invention relates.

I have shown the apparatus especially for 7 7 use with liquids, but, y connecting air pressure, it may be delivered effectively upon air hardening steel to secure the results I have indicated, in which event, of course, a supply tank and an overflow would not be needed.

I have illustrated and described the same largely in conventional form herein, and have not attempted to show proper proportions of the parts, as these will be readily determined by the person skilled in the art to which this invention relates, the form and structural details thereof being capable of very great modification.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a device of the class described, the combination with a supply reservoir, of a plurality of spraying rings arranged in series; a vertically-arranged delivery pipe for said storage reservoir; connections therefor to said spraying rings, the connections for the outer rings opening into said delivery pipe at the side thereof and the connections for the central ring opening into said delivery pipe at the bottom thereof; a pair of valves, one

of which is adapted to control the said delivery pipe, and the other the said connections therefor to the said inner spraying ring; connections for said valves, arranged so that the valve for controlling'said delivery pipe is opened before the other valve; and means for operating said valves. 7

2. In a device of the class described. the combination with a supply reservoir, of a plurality of'spraying devices arranged in series; a vertically-arranged delivery pipe for said storage reservoir; connections therefor to said spraying devices, the connections for the outer devices opening into said delivery pipe at the side thereof, and the connections for the central devices opening into said delivery pipe at the bottom thereof; a pair of valves, one of which is adapted to control the said delivery pipe, and the other the said connection therefor to the said inner spraying. device; connections for said valves, ar-

ranged so that the valve for controlling said delivery pipe is opened before the other valve; and means for operating said valves.

3.1n a device of the class described, the combination with the fluid supply, of a plurality of spraying rings arranged in series a rest adapted to support a tool in a horizontal position centrally of said spraying rings; a pair of inwardly directed nozzles carried by said rest and adapted to deliver against a tool arranged on said rest; a tool gage arranged at the rear of said spraying rings; a

nozzle carried by said gage adapted to deliver to the end of a tool; connections for said fluid supply to the said spraying rings and nozzles; and means for controlling the delivery of the fluid to said rings and nozzles, as desired. g

4. In a device of the class described, the combination with the fluid supply, of a plurality of spraying ringsa rranged in series; a rest adapted to support a tool in a horizontal position centrally of said spraying rings; a pair of inwardly directed nozzles carried by said rest and adapted to deliver against-a tool arranged on said rest; a tool gage ar ranged 'at'the rear of said spraying rings; connections for said fluid supply to the said spraying rings and nozzles; and means for controllin the delivery of the fluid to said rings and nozzles, as desired. I

5. In a device of the classdescribed, the combination with the fluid supply, of a plurality of spraying rings arranged in series; a rest adapted to support a tool in a horizontal position centrally of said spraying rings; a pair of inwardly directed nozzles carried by said rest and adapted to deliver against a tool arranged on said rest; connections for said fluid supply to the said spraying rings and nozzles; and means for controlling the delivery of the fluid to said rings and nozzles, as desired.

6. In a device of the class described, the

ing rings and nozzles; and means for controlling the delivery of the fluid to said rings and nozzles, as desired.

7. In a device of the class described, the combination with the fluid supply, of a plurality of spraying rings arranged in series; a tool gage arranged at the rear of said sprayingrings; anozzle carried by said gage adapted to deliver to the end of a tool; connec tions for said fluid supply to the said spraying rings and nozzles; and means for controlling the delivery of the fluid to said rings and nozzles, as desired.

8. In a device of the class described, the

combination with the fluid supply, of a plurality of spraying rings arranged in series; a rest adapted to support a tool in a horizontal position centrally of said spraying rings; a tool gage arranged at the rear of said spraying rings; connections for said fluid supply to the said spraying rings; and means for controlling the delivery of the fluid to said rings, as desired.

9. In a device of the class described, the combination with the fluid supply, of a plurality of spraying rings arranged in series a tool gage arranged at the rear of said spraying rings; connections for said fluid supply to the said spraying rings; and means for controlling the delivery of the fluid to said rings, as desired.

10. In a device of the class described, the combination with the fluid supply, of a plurality of spraying rings arranged in series; a rest adapted to support a tool in a horizontal position centrally of said spraying rings connections for said fluid supply to the said sprayin rings; and means for controlling the delivery of the fluid to said rings, as desired.

11. In a device of the class described, the combination with the fluid supply, of a plurality of spraying rings arranged in series; valves for controlling the delivery of fluid to said spraying rings; and connections there for, arranged so that the valve for controlling the outer spraying'rings is opened before the valve for controlling the inner spraying ring.

12. In a device of the class described, the combination With the fluid supply, of a plurality of spraying devices arranged in series; valves for controlling the delivery of fluid to said spraying devices; and connections therefor, arranged so that the valve for controlling the outer spraying devices is opened before the valve for controlling the inner spraying device.

13. In a device of the class described, the combination of a spraying device adapted to deliver to all sides of a tool; and a nozzle adapted to deliver to the shank thereof.

14. In a device of the class described, the combination with a sprayingdevice adapted to deliver to all sides of a tool; and a plurality of adjustably supported inwardly di rected nozzles arranged to coact therewith.

15. In a device of the class described, the combination with a spraying device adapted to deliver to all sides of a tool and an inwardly directed nozzle arranged to coact therewith.

16. In a device of the class described, the combination with the fluid supply, of a plurality of adjustably supported spraying devices arranged in series; and means for controlling the delivery of the fluid to said spraying devices.

17. In a device of the class described, the combination with the fluid supply, of a plurality of spraying devices arranged in. series; and means for controlling the delivery of the fluid to said spraying devices.

18. In a device of the class described, the combination with the fluid supply, of a plurality of adjustably supported spraying devices arranged in series.

19. In a device of the class described, the combination with the fluid supply, of a plurality of adjustably supported spraying rin s arranged in series; an adjustable nozz 6 adapted to deliver to the end of a tool when supported in a horizontal position within said spraying rings; and means for controlling the delivery of fluid to said spraying rings.

20. In a device 01" the class described, the combination with the fluid supply, of a plu rality of spraying rings arranged in series; a nozzle adapted to deliver to the end of a tool when supported in a horizontal position within said spraying rings; and means for controlling the delivery of fluid. to said spraying rin s.

21. In a device of the class described, the combination with the fluid supply, of a plurality of adjustably supported spraying rings arranged in a series; and an adjustable nozzle adapted to deliver to the end of a tool when supported in a horizontal position within said spraying rings.

22. In a device of the class described, the combination with a fluid supply, of a plurality of adjustably supported spraying devices arranged in series; and means for con trolling the delivery of fluid to said spray devices, said s ray devices being arranged to deliver to all sides of a tool when the tool is supported in a horizontal ositionj 23. In a device of the c ass described, the combination with a fluid supply, of a plural ity of spraying devices arranged in series; and means for controlling the delivery of fluid to said spray devices, said spray devices.

being arranged to deliver to all sides of a tool when the tool is supported in a horizontal position.

24. In a device of the class described, the combination with the fluid supply, of a spraying ring connected thereto; and an adjustable nozzle adapted to deliver to the end of a tool when supported in said spraying 2 5. In a device of the class described, the combination with the fluid supply, of a s V raying ring connected thereto; and a nozz e adapted to deliver to the end of a tool when supported in said spraying ring.

26. In a device of the class described, the combination with the fluid supply, of a plurality of adjustably supported spraying devices arranged in series; and means for. controlling said spraying devices whereby the fluid may be delivered to desired portions of the tool.

27. In a device of the class described, the combination with the fluid supply, of a plurality of spraying devices arranged in series; and means for controlling said spraying devices whereby the fluid may be delivered to desired portions of the tool.

28. In a device of the class described, the

combination with the fluid su ply, of a spray device adapted to deliver to a 1 sides of a tool when supported in a horizontal position; and a npzzle adapted to deliver to the end of the too In witness whereof, I have hereunto set my hand and seal in the presence of two wit- 

